Magneto-generator.



R. G. KIRCHNER.

MAGNETO GENERATOR.

APPLIoA'rIoN rILnn xAB.s,1si3.

1,108,872. Patented Aug. 25, 1914 anun/vio@ in to .theaccompanyingdrawings .Y Mme STATES 'noiann G'. iiinoiinnn, 0F DETROIT, MicIGAN.

1, L; MAGNETOcEnnRATon m'lhis'einx'ention relatestowan electric gen-' eratoniofetheamagneto .tylpe especiallyfefor ignitiiusystmsv bf interrialvcombustion mo.-

i tors,itheidevicel qbeingiiamangedzftorform nl.;

" unit structure without slidin the likelwhichionibegsedfrea ily :fompower plants ifl automobiles, nmtor boatsn aero-i: planes emirilfnnf u; ,l'io'r trizr-f -55-1 inaftelset forthzandpointedaout in the ap t longitudinaiseotmxf-.throu h izimechanism thatembodiesifeatuiesfofl efinventionfltogethel`^` withaiagrairr-shownguthesparking z teriniilifialiotr tlie`ci'1cuits thereof, a circuit breaker being also indicated jremoved from the shaftfftliefgenerator and illustrated 'as in end elevation; and Figs. 2 and 3 are views in detail of a di.-;tributer.

AS hehehehe-Rei ie Preferredffofii Pvf.

manent magnets l of approved type anldlvdc.- sign on the base 2 have an armature 3 journaled to `rotatie in operative proximity to the poles of the magnets One journal 4 of the armature shaft which conveniently may be hollow, has an insulating bushing :3 in which a hollow extension 6 of the armature is supported, the outer end portion 7 of the latter oeing carried in a suitable bracket 8. A low tension coil 9 on the armature is in series with a coil 10 wound around the extension (i to rotate in the bore of a spool 11 on which a secondary high tension coil 12 is wrapped. One terminal 13 of the coils 9 and 10 extends through a suitable insulating bushing to a trip 15 that is mounted in insulated relation on an arm 16 which is grounded on the portion 7 of the armature shaft. A contact point 17 on the trip 15 normally abuts a pin 18 on the arm 16 through the influence of a suitably disposed spring 19 except when a cam roll 2O on the arm l5 is moved inwardlyv by contact with cam tracks 21 mounted in a suitable casing Q2 on the base.

To increasethe effect of the positive make and break motion of the trip, a condenser is contactslor,A

lation to concentric Witheagwunterhaft 131.-'j iSpark-iplug'sSQ otithe-fmotorltoftvhich 5' Conveniently,` thisfcondenser iis imade iofl aal ternating seriesof disks' indicatedl at .23,1 of sutablematerial mounted ininsulatedffrela- 60 tionin azcasing or drum 24; whiclJiscSeCui-ed: t, to turn'with the shaft extensionizifjdnstiite'- ableconductor as shown at 25iand"26l`oonlfl nect's4 `eaclrisetfof .'rdisksawith .-a-.f terminali .off -th'ev magneto ,coil .-'andiextensionzw-r-One' tr 65 All. 5,11.;

niinal1=27 .ofthe high? tension: ori secondarycoil; is grounded on; the finachineafvr'hleutbe E otherl28`is|`connected Viiliththe binding. post. 129 Sor tli'elikeof anva'nnular. terminaliithat the-device is; applied, -are;eachi`suitablyoc0nr3 nected: as indicated with theabinding'ir posts '33 or th'e like ofscgmentalrteminals'iedise 75.

posed. in' spaced;and insulated -rclation to..

' each; other; andtov the `terminalr30, i concem n tr-i'cally iwithithe.- countershaft' 331, ,a bcasmgw, ofsuitable( design and Imaterial iopming, a support.aJ1d-;housing therefomi. Aflpq'n! 80 36 on the armature shaft extension andgatf 37; 0n the-counteishaft 31 `warnther ilike posi-l tive',means;rotate the countersha'fhiiniltlmdrelation to' th'e motor shaft4 and ;t 0;the,inagf neto shaft. A disk 38 ofinsulating mate- 85 fvil is ,Crfedi'byf-the wimtsrshettlttefete v b etiyeen the terminals" 30 and`34, an aperture 39 through the disk permitting the secondary circuit to bc closed across the air gap thus formed between the annular and segmental terminals in succession. Any suitable means may be provided for shifting the )osition of the segmental terminals angularly in relation to the movement of the magneto for the purpose of advancing the spark although such means are not shown herein and do not per se form a part of the invention.

ln operation the induced primary current of the armature through the armature coil and extension is sharply broken periodically hy thc make-and-break-mechanism, thereby producing the necessary inductive elfect in the secondary coil. The distributer periodically closes the secondary circuit to produce the necessary spark at the ignition terminals of the motor in proper relation to the movement of the magneto.

As the generator has no cominutator or sliding contacts it is readily maintained in operative condition.l as it is free from the necessity of adjustments attendant upon :such sliding contacts and from the const-unt renewals to which these are subject Obviously, changes in' the details 'of construction may be made Without departing 5 from the spirit of my invention :1nd I do not care to linut niyselfrtonny:,particular-form cuit -'bren ker 4.oliierttively connected eti'flnl gungl'net' generator, lperrinznient fieldilagnets, mi-:.armature shaft rotatable polepleces of 'the field magnets,

between?r Ithe n u magneto genl ettr-,nith'iairnarmnture: coil having 'an exteisiox'ncoil m-.iseniesthei'ewitmzof a cirfield iungnets, extension in les \\'i series with the coils,

lil-enkel', :i fixed second ri'ipter in series with field inzignetst to the tureI coil on the sha1 cuit breaker niounted o pfern ti 'vel connected armature coil, :and :i across the circuit bren nve cents each, by addressing uw Washington, D. C.

series ivith lthe coils, nv coll concentric with4 the extenswn lcoil, .andi nn interrupter invseiles with the secondarvf in' unison with the nrnmtuecoil.: .nalng :l

In testimony ivhereofrlfi'fix my' signal' ture in presence oftwo witnesses. i A

RICHARD- :in :umnture coil on the shaft between the c oil on the shaft forming :u1

th the nrinnture coil,

:i circuit breaker nmunte-(l on the shaft in :i condenser mounted on the -shzxl't connected across the circuit :i1- y coil within' which tlic-citci'iion coil jrevolves und :1n interthe secondary coil.

i". ln :i magneto generator, .perm'nent nn' n'rnniture shaft journa'led between the pole vpieces thereonT :u1-:irmaft between the pole on.l the .extension in stationary. secondary n circuit breaker in iieS with' the condenser` in shunt lier adapted to'iotute '1 G; In n magneto-generator.,hwng an' armature coil und un extension coil'fin series with the armature coil, arranged to. rotatie in unison tluxrei'vitln 

